Soil-pulverizer.



L. OHBSSERi SOIL PULVERIZER APPLICATION FILED SEPT.3,1913.

Patented Mar. 3, 1914.

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SOIL PULVERIZER.

APPLICATION FILED SEPT. a, 1913.

1,089,325, Patented Mar. 3, 19m

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LEWIS CHESSER, OF 'WILSON, 'WASHINGTON.

SOIL-PULVERIZER.

i passes.

Application filed September 3, 1913.

Specification of Letters Patent.

lPatented 3, lit-d ll. Serial No. 787,974.

Z1) all LG/1.0772. it may concern.

BC it known that 1, Lewis Cnnssnn, a citizen of the linited States, residing at lVilson, in the county of Lewis and State of ashington, have invented ne v and useful lmprovenients in Soil-Pulverizers, of which the following is a specification.

This invention relates to soil pulverizers, and it has for its object to produce a machine of this class embodying a revolubly supported pulverizing cylinder which shall be simple in construction and effective in operation.

A further object of the invention is to produce a machine of the class described having simple and efficient means for raising the cylinder to an inoperative position for transportation and when not in active use.

ii'ith these and other ends in view which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claims.

in. the accompanying drawings has been illustrated a simple and preferred form of the invention, it being, however, understood that no limitation is necessarily made to the precise structural. details therein exhibited, but that changes, alterations and modifications within the scope of the claims may be resorted to when desired.

lfn the drawings,f igure 1 is a top plan view of a machine constructed in accordance with the invention. Fig. 2 is a rear elevation of the same. Fig. 3 is a longitudinal sectional view taken on the line 3 3 in Fig. 1, the cylinder being shown in earth engaging position. Fig. 4: is a View similar to ll 3, but showing the cylinder in raised position. Fig. 5 is a sectional detail view taken through the counter shaft and its bearing on the line 55 in Fig. 1. Fig. 6 is perspective detail view of a portion of the axle, one of the supporting arms and related parts.

An axle is provided with ground wheels 16 mounted thereon for rotation and with a forwardly extending tongue 17, the front end of which is preferably supported on a tongue truck 18 for the attachment of the draft animals. The tongue is connected with the axle by means of arcuate braces 19 which are extended rearwardly of the axle to form brackets 20.

7 Each of the brackets 20 provided at a distance from its rearward extremity with lugs 21 with which rearward attending arms are hingedly connected, salt arms being supported on the brackets 20, whereby the downward movement of said arms is limited. The arms 22 are curved downwardly, and they serve to support a cylinder which is equipped with earth-engaging teeth 2i. The cylinder may consist of a skeleton structure, and the teeth may be provided with threaded shanks 535i extending through apertures in said s leton struc ture and having nuts :26 to enable said teeth to be readily applied, detached and renewed when occasion shall require. The teetn may be made of any desired shape, but they are preferably made triangular in cross section and provided. with relatively sharp earth eng ging cutting edges.

l? sing from the a:-.-e adjacent to the ends thereof are uprights 27, said uprights being reinforced by braces 28, the lower ends of which. are connected with the braces 19. The uprights 27 snpport a tubular casing :29 that affords a. hearing for a shaft 30. The shaft 30 has at one end. sprocket wheel 31. which is connected by a chain with a sprocket wheel associated with one of the ground wheels from which motion will thus be transmitted to the shaft. The latter is provided at its other end with a sprocket wheel 3-1 which is connected by a chain 85 with a sprocket: wheel 36 associated with. the cylinder 23 to which rotary motion will thus be transn itted.

Ti lie arms that support the pulverizing cylinder are provided at their forward ends with segment racks 37 which are positioned adjacent to the side faces of the brackets :20 and which are engaged by worms 38 formed on shafts 39 supported. for rotation in brackets d0 associated with the uprights 27, said shafts being provided at their upper ends with hand wheels ll whereby they may be conveniently rotated.

The brackets 20 are so positioned in the path of the arms 22 to support said arms when the cylinder carried thereby is in earth engaging position, the weight of the cylinder being thus to a large extent supported when the machine is in operation. By manipulating the hand wheels ll, the

arms 22 may be rocked, thereby lifting or elevating the cylinder to a non-engaging position with respect to the ground for convenience in transporting the machine from one place to another.

In operation motion is transmitted from one of the ground wheels to the counter shaft 30 and from the latter to the pulverizing cylinder. The sleeve 29 which affords a bearing for the shaft 30 is preferably provided with anti-friction bearings, as inclicated in Fig. 5, at $2. A. seat 43 for the driver or operator is mounted on the tongue 1"? suiiiciently in advance of the latter to enable the weight of the operator to be utilized in counterbalancing the weight of the pulverizing cylinder.

Paving thus described the invention, what is claimed as new, is

1. In a machine of the class described, an axle having ground wheels, brackets eX- tending rearwardly from the axle, cylinder carrying arms hinged upon and supported by the brackets, rack segments at the front ends of the arms, said segments being positioned adjacent to the side faces of the brackets, and worms engaging the rack segments, the brackets being extended rearwardly in the path of the cylinder carrying arms to limit the downward movement thereof.

2. In a machine of the class described, an axle having ground wheels, hingedly supported arms carrying a revoluble pulverizing cylinder and having rack segments at their forward ends, uprights rising from the axle, a bearing sleeve supported on the uprights, a counter shaft supported for ro tation in the sleeve, means for transmitting motion from one of the ground wheels to the counter shaft and from the latter to the cylinder, bearings on the uprights, and shafts supported in said bearings and having worms engaging the rack segments, said worm carrying shafts being provided with hand wheels.

In testimony whereof I ahix my signature in presence of two witnesses.

LEWIS CHESSER.

Witnesses J. H. Donor, XV. H, CARPENTER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

